Is Pregnancy Possible Despite Taking Plan-B?

Posted on Mon, 12 Jun 2017

Medically reviewed by Ask A Doctor - 24x7 Medical Review Team

Mon, 12 Jun 2017 Answered on

Tue, 4 Jul 2017 Last reviewed on

Question : Hi. I had unprotected sex on the 14th day of my period. I realized I could be ovulating a little too late. I usually have a 28 day cycle. But last period I was four days late. I took Plan B less than 12hrs after. I'm four days away from my period and I feel really weird. Is it possible the Plan B didn't take or am I just worrying too much?

Answered by Dr. Deepti Verma (40 minutes later)

Brief Answer:
Side effect of the pill

Detailed Answer:
Hi dear,
I have gone through your question and understand the concerns.
Delayed periods can be due to pregnancy or as a side effect of the plan B.
If you had taken within 24 hours of unprotected intercourse, then there are almost nil chances of pregnancy.
I will suggest you to get a urine pregnancy test done.
If negative, then you can safely wait for the periods for another 2-3 weeks.
Then the delayed periods are due to the side effectof the pill.
Hope found the answer helpful.
Regards
Dr Deepti VeVerma
OBGYN

Above answer was peer-reviewed by : Dr. Prasad

Follow up: Dr. Deepti Verma (29 minutes later)

Thank you. We had sex twice and both times he pulled out. But since I was either ovulating or close to ovulating I thought I better be safe. Especially since I started massage therapy for my uterus this last month due to my rough periods. She had warned me that this therapy could increase my fertillation so I am worried that the pill didn't take for some reason. I feel nauseous but that could be from the pill, right? I have three more days to go until my period is officially late.

Answered by Dr. Deepti Verma (10 hours later)

Brief Answer:
Nausea due to the pill

Detailed Answer:
Hi dear,
Yes dear, the nausea is most likely due to the pill.
The chances of pregnancy are nil if you have taken within 12 hours.
Regards
Dr Deepti Verma

Above answer was peer-reviewed by : Dr. Remy Koshy